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30 lines
1.6 KiB
HTML
30 lines
1.6 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<title>CUCC Expo Rigging Handbook: Drilling holes</title>
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<link rel="stylesheet" type="text/css" href="../../css/main2.css" />
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</head>
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<body>
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<h2 id="tophead"> CUCC Expo Rigging Handbook</h2>
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<h1>Bolt belays - Drilling and placing</h1>
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<p>Once you've decided where to put your bolt, you have to actually physically
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place and set it. The methods used differ substantially depending on whether
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you are using hand bolts (spits) or drilling using Hang Fix anchors.</p>
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<h3>Hang Fix anchors</h3>
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<p><a href="../../documents/hangfixtraining.pdf">Hang Fix training</a>
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<p><a href="trainingrecord.html">List of people trained for installing hang fix anchors</a></p>
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<p>See the <a href="../../documents/anchor-appraisal-martingreen2020.pdf">2020 appraisal of anchors</a> and choice of bolt types for future expos.
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<div class="onleft"><a href="../l/bosch.html"><img
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alt="(73k image)" src="../t/bosch.jpg" width="250" /></a></br><span
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class="caption">Using the Drill</br>(click to enlarge)</span></div>
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<h3>Spits</h3>
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<p>Anchor placement and dressing the rock is achieved in the same way as for Hang Fix anchors. A spit should be threaded on to the driver, placed on the rock and hammered. Rotate the driver clockwise, as you hammer. This will move the teeth around and ensure that the spit is firmly threaded on to the driver. If the spit becomes unthreaded as in hit the threads will be ruined. Keep drilling until the surface lines up with the line on the driver. Then pop a cone in the end of the spit and hammer it into the hole.</p></body>
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</html>
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